The invention relates to a display and operating device in particular
for vehicles. The operation of facilities in one
Motor vehicle cockpit is often done via so-called
interactive controls. An interactive control device
includes an operating display on which one or more controls
for vehicle facilities such as vehicle seats, windscreen wipers, window regulators,
Navigation aids, etc., at least temporarily graphical representable
are. The area of the (to the operating device
belonging) operating display and the area of the
(to the display device belonging) information display
are on the same display. Through the information display
can z. B. on the control panel desired
Information is displayed. The division of the area sizes
The two areas may be adapted to the current needs
be adjusted. The entirety of the operation display and the information display
is hereinafter referred to as display.
Controls are associated with individual facilities of the vehicle.
An action of a device is activated or triggered
by having a user with an actuating element, in particular with
a body part, such as a finger,
the graphical representation of the control on the control panel
touched. Interactive operating devices in which a
Contact is necessary to trigger the operating action,
are referred to as touch-screen controls.
for the representation of the different operating elements
available display area of the operating display
is limited. To a variety of illustrated controls
to operate only one operating element by means of a touch,
Care is required on the part of a user due to the
necessary concentration of the driver on the traffic
not always given. Even when driving on a rough road
it is often difficult for a user to do such a thing
Perform operator action without errors during the journey.
Therefore, it is desirable to have a user's intention to operate
before a touch of the position-determining control element
to capture and single or multiple of the controls shown,
for the increased operating probability
was determined, optimally scaled for one operation
display. This requires the position
of the actuating element, in particular a finger before
to capture an actual act of action.
In order to measure the position of a body part (finger) contactless, is in the document WO 2004/078536
described a measuring principle for distance measuring sensors, are evaluated in the transmitted via a user high-frequency signals. Near the user's body is a radio frequency transmitter. In a motor vehicle, such a high-frequency transmitter is preferably integrated in a vehicle seat. The high-frequency signals coupled into the body of the user are capacitively received by the distance measuring sensors of the operating device. Based on a signal strength, the distance of a body part can be determined by the distance measuring sensor. On the basis of several such distance measuring sensors, which are arranged in a sensor arrangement, it is in principle possible to determine the position of the body part in front of the operating display by means of trigonometric calculation methods.
With this known measuring principle it is that the transmission
the high-frequency signals from the current state
of the medium for the transmission of the signals
is, here under the medium the whole of different sections
existing connection between the radio-frequency transmitter and the radio-frequency receiver
in the operating device is to be understood. Incidentally, is
the known measuring principle not very easy to install, there
individual units of the measuring system and their power supply in
different components of the vehicle, such as dashboard,
Vehicle seats, must be accommodated. Also can
Reservations about the persons in the vehicle
that radiofrequency signals pass over their body
has display used in the display and operating device
regularly an LCD display. Such a display
has a number of disadvantages when used in vehicles.
For one thing, the readability of the display is very different from the viewing angle
dependent, so that when centered on the dashboard arranged
Displays for each side of the display sitting
Persons in the vehicle the display only in weakened
Shape is visible. The LCD displays still need
a direct or indirect backlight with a corresponding
Warming, a corresponding energy consumption and a
elaborate regulation of the backlight. Furthermore are
Due to the technical conditions the LCD displays are stiff and
This makes it difficult or impossible to do so
more complicated shapes, for example on a dashboard of a vehicle,
From the literature novel electro-optical display means are known which are based on the action of organic, light-emitting diodes (organic light emmitting diodes ~ OLED). Organic Light Emitting Diodes (OLEDs) are components of ultra-thin organic layers, similar to plastic films, that emit light when a voltage is applied. These components are not only very flat, but in principle can be produced over a large area and efficient in the generation of light. In addition, they respond very quickly to the applied voltage, are flexible and inexpensive to produce in large series. Displays with OLEDs require no backlight and allow low power consumption. You also have a wide viewing angle.
From the DE 10332953 A1
an OLED display has become known for mobile applications, wherein an additional operation by means of an operating device and this is integrated into the display. The operation is one or more responsive to touch input options, in particular, a touch-sensitive touch screen can be used, which generally has the disadvantages explained above.
The invention is therefore based on a display and control device of the type resulting from the preamble of the main claim and has set itself the task to provide such a display and control device with a responsive in a novel way to an approaching actuator control device. The object is achieved by the resulting from the characterizing part of the main claim feature combination. The invention consists in principle in the fact that the operating device recognizes the desired operation as a function of the incident on the solar cells light radiation. This is in contrast to the one from the DE 10332953
known arrangement that uses a touch screen and thus can not detect the approach of an actuator.
Another important feature of the invention is that the
Control device comprises polymeric solar cells. It has become
demonstrated that the mode of operation of the known OLEDs are reversed
leaves. In this case, instead of a
Generation of light due to a voltage applied to the OLEDs
Conversely, at the OLEDs pick up a voltage, if this with a
Light radiation can be applied. As a result, this means that
the OLEDs by a corresponding wiring also as on light
responsive sensors can be operated, the following
be referred to as polymeric solar cells.
Effect of these as polymeric solar cells or organic solar cells
designated OLEDs is known per se. The use of the polymeric
Solar cells related to the operating device
the generic display device offers
significant benefits and a range of options
in conjunction with a corresponding evaluation circuit itself
approaching actuator discerning polymer
Solar cells are located on a very thin foil.
This film can also be adapted to very complicated surface shapes
and thus offers against a usual
LCD display significant advantages. The slide can continue including
the solar cells containing them and the electrical connection technology transparent
be executed so that this slide easily on the
Surface of a displaying medium are attached
can. Practically, this means that the film over the
Surface of an operating display can be placed
without the visibility of the displayed controls particularly
would be influenced. The foil provided with the solar cells
but can also be used advantageously in other technical fields
For example, as a proximity switch or as a sensor
on light responsive control circuit.
the film described with the solar cells over a
Operation display, so there is another advantage. Because in this
Case sensors and controls are superimposed, is
the determination of the position of an actuator is more accurate,
the more the actuator approaches the control.
The probability that the actuator is a particular
Trigger control element is therefore getting bigger.
This can be exploited to a sufficiently large
Probably the sensational the solar cells not only for
the determination of the position of the actuator but
also to exploit the triggering of the control itself,
without that it would be necessary that the actuator
actually touched the control. With others
Words, if through appropriate measures, such as
Measurement of the time as long as the actuator immediately above
a certain operating element persists, it is ensured that
the operation request is beyond doubt, so can over
the sensory solar cells the corresponding control element
be triggered immediately. On additional
Measures such as a touch screen can thus
The position or the change in position of the actuator is detected without contact by the operating device by means of the measured by the solar cells light radiation or radiation change. This results in several methods, which are described below by way of example. These procedures are based on the consideration that invent According to the change in the incident on the solar cells light radiation on the position or movement of the actuator can be concluded. Since now the actuator itself is not an active radiator, a radiation source is needed whose light incident on the solar cell is dependent on the position of the actuator.
one can serve the brightness of the environment as a radiation source.
It can by the operating device by the movement of the
Actuator conditional shading of the solar cells
incident ambient light are evaluated. Starting from
the normal brightness of the solar cells detected by the solar cells
Surroundings will be the, by the approaching actuator
conditional, decreased brightness detected. In other words,
by the operating device is the (by the approaching
Actuator conditional) shadowing measured and thereby the
Location or change in position of the actuator detected
and thus the presumed confirmation request determined.
The prerequisite is that a sufficiently large ambient brightness
another possibility for determining the presumed desire to operate
Basically, this is the radiation of the display screen in particular
use the operating display as a necessary radiation source.
This is reflected by the reflection of the display
emitted radiation through the actuator on the
Activation request closed. The advantage of this measure
lies in the fact that for such a measurement no ambient brightness
is needed. The radiation of the operating display is preferred
as a radiation source.
Difficulty with regard to the last two measuring methods described
This is because usually both the brightness of the environment
as well as the display and control device with their OLEDs simultaneously
act as radiation sources. Nevertheless, a meaningful knife result too
Therefore, the size of the instantaneous radiation must be preserved
the two radiation sources (without being influenced by the actuator)
in the evaluation of the radiation received by the solar cells
be taken into account. Regarding the brightness of the
Environment this is not a major problem
because the solar cells can be aligned so that they
only measure radiation coming from the environment. So long
no actuator in the immediate vicinity
The solar cells measure only the brightness
the brightness of the output by the display and control device
Radiation can change constantly, are here
additional measures necessary to a reasonable
Measurement result of the solar cells to come. It can be considered
be that the individual OLEDs of the display electrically controlled
have to shine to light up. The prevailing control of the
individual OLEDs allows sufficient conclusions
on the brightness of the display and operating device as a radiation source
too, so that the instantaneous brightness of these radiation sources
in the evaluation of the measurement results of the solar cell consideration
Can be found.
the actuator according to the prerequisite
the operation indicator may approach in the above considerations
possibly the changing radiation of the
Information display are neglected.
It is recommended to avoid the last mentioned difficulties
in development of the invention, the application of the features of claim 2.
The advantage of this measure is in particular
that regardless of the operating and / or information display
the display and the ambient brightness radiant additional
Radiation source can be configured such that the radiation
the environment and the ad are not taken into account
got to. One way to do this, for example, is to
the radiation of the additional radiation source in one
to assign the solar cells associated frequency range in which the radiation
the ad is ineffective. Furthermore, the radiation of this
additional radiation source chosen so large
be that the radiation from the environment and display is negligible.
In this context, it is particularly advantageous if in training
the invention find the features of claim 3 use. Because the
additional radiation source in an invisible,
in particular emits infrared light, she makes herself for
the observer of the display is not disturbing noticeable.
Furthermore, the solar cells can so on the radiation
the additional radiation source are tuned that
they are the visible radiation of other radiation sources
not or only negligibly register. By the
described strength of the invisible radiation as well as the
possible spatial removal of the additional
Radiation source from the information display is an additional
Suppression of the radiation of the environment or of the display
Preferably, the invisible radiating additional radiation source can be provided according to a combination of features according to claim 4 with correspondingly doped OLEDs. It is also advisable to use the image generation of the display or at least the operating display with Hil fe of OLEDs. This makes it possible to simplify the production method of the display and operating device according to the invention, since, for example, both the OLEDs of the display screen and the additional radiation source can be accommodated on the same film. This results in benefits
such integration of the radiation source of the display and the additional
Radiation source according to the features of claim
5 on the same slide can be configured differently.
advantageous embodiment of this describes in development of
Invention the combination of features according to claim 6. It is located
the OLEDs of the invisible radiating additional radiation source
although on the same slide as the OLEDs of the operator panel,
but in a remote area. The advantage
Such a measure consists essentially in that
the image of the display by the additional radiation source
is not disturbed, for example, in the picture of the
Operator display non-indicating islands emerge from which
radiates the additional radiation source.
it can, as described, bring benefits, the additional
Radiation source of the display device spatially settle.
As far as the additional radiation source also like the
Display for information and operation provided with OLEDs
is, is recommended in a further development of the invention, the feature combination
according to claim 7. The OLEDs of the additional
Radiation source evenly between the OLEDs
of the display, in particular the operating display
be arranged. It is particularly advantageous that the im
invisible light radiating OLEDs of the additional
Radiation source does not disturb the image of the display on the display.
The polymer solar cells have a structure of the OLEDs of the operation display
and / or the additional radiation source largely corresponding
Construction. The main difference is only that of the
Downstream electronic circuits supplied the OLEDs with voltage
while tapping voltage from the solar cells
becomes. This allows the production process of the invention
Display and operating device simplify, since both the OLEDs
Display displays (for operation and information) and / or
the additional radiation source on the same slide
can be accommodated as the polymeric solar cells. A
Such integration brings a number of advantages. On the one hand
can the OLEDs and the solar cells by means of the same
Technology are produced, which leads to a certain simplification
of the manufacturing process leads. Furthermore, the OLEDs and
the solar cells are superimposed on a common or several
arranged the flexible sheets, so that display device and
Operating device even on complicated surface shapes
can be arranged or applied to these. Furthermore
creates with regard to the generic display
and operating device the combination of OLEDs for the
Display device and polymeric solar cells for the operating device
Options for many advantageous developments that continue
will be described below.
Such integration of polymeric solar cells, the OLEDs of the display
(i.e., information display and operation display) and / or the additional
Radiation source according to the features of claim
8 on the same slide can be configured differently.
advantageous embodiment of this describes in development of
Invention the combination of features according to claim 9. Here are
Although the polymeric solar cells on the same film as the OLEDs
the display and / or the additional radiation source
but in a remote area. The advantage
such a measure consists essentially of
that the image of the indicator is not through the polymeric solar cells
is disturbed, for example, in the image of the display
non-displaying islands in which the polymers are solar cells
are arranged. By at the edges far from each other
remote polymer solar cells of the operating device
is also a more accurate determination of the position of the actuator
as described, it can bring benefits, the polymeric solar cells
from the display and / or the additional radiation source
spatially settle. As far as the polymeric solar cells also
much like the OLEDs of the ad and / or the additional ones
Radiation source constructed and only connected differently, recommends
itself in development of the invention, the application of the combination of features
according to claim 10. In this case, the polymeric solar cells
the operating device evenly between the
OLEDs of the display, in particular the operating display distributed
be arranged. It is particularly advantageous that the polymeric
Solar cells of the sensor device the image of the display device
Do not disturb on the display.
In a further development of the invention, it may prove advantageous to apply the features of claim 11. It is assumed that not only the electrical wiring of the OLEDs but also the wiring of the polymer solar cells are made transparent can. Thus, an additional layer is placed over the layer of the display (particularly the operator panel) which receives the polymeric solar cells. In this case, the solar cells are preferably placed above the area of the operating display, which displays the operating elements on the display. Since the solar cells act directed and thus evaluate only radiation that hits from the environment on them, the operation of the solar cells is not affected by the radiation of the underlying display.
It is also recommended according to the combination of features
Claim 12, which adds to the additional invisible radiant
Radiation source belonging OLEDs above the range
the operating display on the display.
particularly important and fundamental development of the invention
results from using the features of claim 13, according to which
the features of claim 11 and 12 are used in combination.
After that are on one of the actual display
Separate foil or layering both the OLEDs of the invisible
radiating radiation source as well as the polymeric solar cells.
In this film thus the entire sensor for the
Recognition of the position or change in position of an actuating element
to get integrated. Due to the recognition of a probable
Actuation request of one or more on the operating display
shown controls by means of a corresponding evaluation circuit
These can then be scaled to their operations
to facilitate. As already explained above but at
corresponding probability of an actuation request
the corresponding controls but also triggered directly
without the need for a special touch screen
would. Because the entire sensor system on a separate and transparent
Film is housed, this can also be added later
be retrofitted to an existing display,
in the place appropriated the film on the mounted in display
is, so for example on the operating display.
The rule is the proximity of an actuator
to the corresponding polymeric solar cells by modification
of the light striking you. Another possibility,
to the position or change in position of the actuating element
determine results in the invention of the
Feature combination according to claim 14. Thereafter, the operating device with
a pulse generator, which the OLEDs of the additional
Radiation source driven such that they pulsed and / or
send out modulated infrared packets. The through the actuator
reflected infrared packets become attenuated
and with a transit time shift received by the solar cells.
From the weakening of the infrared packets and / or the transit time shift
then can the situation or the change in position
of the actuating element by a corresponding evaluation circuit
the brightness of the environment on so is the picture on the display or
the ad is less recognizable. In development of the invention recommends
It is therefore according to the combination of features according to claim
15 also to use the solar cells in addition,
to the brightness of the display on the display to the daylight
adapt. The solar cells receiving the light of the environment
thus serve not only to determine the position of the actuator
but also to control the contrast of the display
the brightness of the environment.
can according to the combination of features according to claim 16 as training of
Invention by the solar cells and the radiation of the display
belonging to OLEDs. As is known, reduced
At constant voltage, the radiation of the OLEDs over time.
By applying the features of claim 16, it becomes possible
the solar cells in addition to the regulation of the display
exploit the voltage applied in the OLEDs.
the solar cells only measure radiation in a defined direction
can by special measures for it
to ensure that from the solar cells the respective radiation to be measured
can be specifically recorded. This can be done, for example, by
that an adaptation of the display to the respective daylight gem.
Claim 16 is only made if no actuator
is detected. As the solar cells are usually aligned in this way
are that they measure the light of the environment are some of the solar cells
so polen and align that they (also) the radiation
of the ad in order to use the characteristic combination
Claim 17 to act. Since the brightness of the display screen or
of the operation display according to the displayed images
will fluctuate, is to ensure that through the solar cells
the radiation of the display OLEDs at a
standardized voltage is measured. Such a standardized voltage can
the display device, for example when switching on the display
and operating device are supplied.
Embodiments of the invention will hereinafter be a
Hand of the drawing shown.
The single figure shows a simplified representation of a z. T. broken shown disassembled display of a display and control device. The area of the display 1 is divided into an information display and an operating display 2 (both not shown in detail). The information display is used to display conditions (temperature, oil level, speed, mileage, etc.) of facilities in the vehicle but also to display information that may affect the environment of the vehicle (traffic situation, navigation maps and the like). The operating display is an input option for a downstream operating device, not shown in the figure. In this case, on the operating display graphical control elements such as buttons, buttons, slides are shown, which can be acted upon by an actuating element such as a finger. By pressing the controls, the desired information can be displayed on the information display.
The display, so both the information display and the operation display is provided with so-called OLEDs, which are composed of ultra-thin organic layers which emit light when a voltage is applied. The use of OLEDs displays for information display for mobile applications is from the DE 10332953 A1
For the present invention, it is now important that the controls of the operating display by the actuator 3 can be applied without contact. This makes it possible for a correspondingly equipped display and control unit to recognize the probability with which a specific, on the operating display 2 illustrated control by the actuator 3 is controlled. The display and control device can then display the one or more control elements that are actuated with a high degree of probability and thus considerably facilitate the actuation of a control element. In order to make this possible, a sensor device, not shown, is necessary on a regular basis, which determines the position or change in position of the operating element by means of one or more sensors which approaches the operating elements so as to recognize the operating element which is most likely to be actuated by the user. This operating element can then be displayed scaled on the operating display and optionally touch-operated.
In order to determine the position or the movement of the actuating element serves an additional signal source, which emits a non-visible, in particular infrared radiation I. From this radiation I is a certain proportion of the actuator 3 reflected and the reflected radiation R is thrown back towards the operation display 2 , The reflected radiation is received by, in particular, not shown polymeric solar cells, which belong to an operating device, which forms part of the display and control device. The size of the reflected radiation R received by the individual solar cells is a measure of the distance of the actuating element 3 from the individual solar cells. Evaluate the distance of the actuator 3 of several solar cells, so you can change the position or bearing change of the actuator 3 in front of the operating display 2 to calculate.
The figure now shows one opposite the layering of the display 1 with their to the information display and the operation display 2 belonging to (not shown) OLEDs an additional layering 4 on the several rows of fields 5 are arranged, which represent transmitting / receiving units. Each of the fields 5 is preferably associated with a (not shown) operating element, which on the operating display 2 is shown. Each of the transceiver units 5 is equipped with one or more OLEDs, which emit the radiation I. The reflected radiation R is from polymeric solar cells in the fields 5 received, with each of the fields 5 has one or more of these solar cells. The likelihood of the actuator 3 a specific field and thus a specific operating element on the operating display 2 approaches, is for that control element on the largest associated transmitter / receiver units, the highest reflected radiation R and its solar cells thus deliver the highest voltage.
The stratification 4 represents a very thin foil in their fields 5 as a transmitter of the radiation I serving OLEDs and as a receiver of the reflected radiation R serving polymeric solar cells are applied. The transmitting OLEDs and the receiving solar cells are largely identical, with the difference that a voltage is applied to the OLEDs while a voltage is tapped by the solar cells. The foil 4 , the fields 5 and, which here too necessary electrical wiring are transparent, so that thereby the consideration of the on the operation display 2 visible controls is not affected. For better understanding, the operating display 2 and the foil 4 drawn apart from each other. In practice, the two components immediately adjacent to each other and mechanically formed a flexible unit that can be well applied to complicated shaped carrier.
The invention can be briefly summarized as follows. The object of the Er It should make it possible for an object, for. As a finger to be detected in front of a performing medium such as a display. The previously proposed sensor is mounted on the edge of the display and brings problems in the evaluation with it. Transparent OLEDs (Organic Light Emitting Diodes) offer new solutions. There are both transparent OLEDs that can emit light and OLEDs that are connected as a solar cell. These two in combination are to form a transmitter-receiver pair, which is mainly the sensing of performing surfaces (in this case in front of a display) to enable.
Through the use of infrared OLEDs as transmitter and receiver, a sensing can take place directly in front of the display without affecting the quality of the display. In an additional transparent layer immediately in front of the display, a transmitting and receiving OLED is applied. The OLEDs operate in the infrared range, so that the display of the display located behind it (display) remains visible. If the transmit OLED sends out its signal, this is sent by an actuator 3 reflected in range and falls back to the transparent layer. As a result, a certain part of the emitted radiation is detected in the presence of an actuating element on the receiving OLED. An evaluation electronics, not shown, determines whether the received radiation was reflected by background effects or by an object in front of the display with the transparent layer.
It is suggested before the display 1 an array 5 of transmit and receive OLED attach to simultaneously realize a position determination. The receiver with the highest received power is perpendicular to the actuator 3 , Also, a plurality of actuating element can be detected and the contour of the actuating element can be determined.
Through the use of through the OLEDs of the transmitting / receiving units 5 transmitted pulsed or modulated infrared packets may also be the distance of the actuator 3 be determined. Background radiation and similar parasitics are suppressed by clever evaluation methods.
Many use OLED as transmitting and receiving units
Degrees of freedom. The application of the emitting and absorbing layers
through layer technology lets the shape of the transmitting and
the reception OLED creative freedom. More interesting areas
are simply realized by higher sensor density.
QUOTES INCLUDE IN THE DESCRIPTION
The documents listed by the applicant have been automated
generated and is solely for better information
recorded by the reader. The list is not part of the German
Patent or utility model application. The DPMA takes over
no liability for any errors or omissions.
Cited patent literature
- WO 2004/078536 
- DE 10332953 A1 [0008, 0038]
- - DE 10332953